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stich3 [128]
2 years ago
11

A system of linear equations is graphed below

Mathematics
1 answer:
Mashcka [7]2 years ago
6 0

Answer: D

Step-by-step explanation: 20,20

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A bookstore bought a case of 10 books for a wholesale price of $74. The bookstore will sell the books at a 20% markup. How much
Darya [45]

Answer:

8.88 dollars so D

Step-by-step explanation:

3 0
3 years ago
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I’d like some help on this please
SSSSS [86.1K]

Answer:

5,-3

Step-by-step explanation:

4 0
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Pls help I need ASAP pls
eimsori [14]

Answer:

  -1

Step-by-step explanation:

The line goes down 1 grid square for each grid square to the right. Each grid square represents 1 unit in both the x- and y-directions. That means the slope is ...

  m = rise/run = -1/1 = -1

The slope of the line is -1.

6 0
2 years ago
I will mark brailiest if anyone answers the question right. show your work with working.
finlep [7]

Answer:

remaining cardboard area =  122.5πr²

Step-by-step explanation:

area of original rectangle = length * width                                                                      

                                          =  18r * 8r

                                           =     144r²

  • area of semi circle: \frac{1}{2}πr²

Here we have 3 semi circles with radius 3r:

  • area of 3 semi circles:  3( \frac{1}{2} * π * (3r)²)

                                   : 3( \frac{1}{2} * π * 9r²)

                                    : 13.5πr²

  • area of one semi circle with radius 4r:

                       ( \frac{1}{2} * π * (4r)²)

                       ( \frac{1}{2} * π * 16r²)

                             8πr²

  • So the area of remaining cardboard:

            area of rectangle - area of 4 semi circles

                        144r² - 13.5πr² - 8πr²

                                122.5πr²

8 0
2 years ago
Find the perimeter of this figure to the nearest hundredth
Alja [10]

Answer:

The perimeter of given figure = 56.56 ft

Step-by-step explanation:

Step(i):-

From diagram

The length of the rectangle = 10 ft

The width of the rectangle = 8 ft

Perimeter of the rectangle

= 2 ( l+w)

= 2 ( 10 + 8)

= 2 × 18

= 36

Step(ii):-

The semi circle is included in the given diagram

Now we will find the perimeter of semicircle

We know that

perimeter of the circle

p = 2πr + d

perimeter of the semicircle

P = πr + 2 r (∵ d = 2 r)

Step(iii):-

From diagram the diameter of semicircle is equal to the width of the rectangle

d = 8

d = 2 r = 8

The radius of the circle 'r' = 4

perimeter of the semicircle

P = πr + 2 r

P = 3.14 ( 4) + 8

P= 20.56

Conclusion:-

The perimeter of given figure

= perimeter of rectangle + perimeter of semicircle

= 36 + 20.56

=56.56 ft

8 0
2 years ago
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